Ae 
HEAT 
aieomeies ; and next advert to the following’ fubdivifions, bodies, or the ratios of Pe wide of heat neceffary to 
y Arial Heat, CALORIMETER, resaanna ation of raife them agiven interval o temperature. This has Fo 
2 Free or Senfible Heat, and Latent & of ex ame gg Fe inquiry by feveral authors, 
Capacity for Heat, or Specific Heat. ” That bole ofthe as Black, 1 rvine, gee , Gadolin, Wilcke, Lavoifier, 
fame weight and temperature contain unequal quantities of Meyer, Lelia, and Da fi wing table G the 
heat has been fhewn under s Capacity andCoxp. capacities of certain A: is s derived 
It is of importance to afcertain the fpecific heats of different more objeétionable ones being omitted. 
T ase of the fpecific Heats of various Bodies. 
‘ 4 Equal Weights. Equal Bulks. ual. Wéichts.|Eoval Bu 
Gafes. Sulphuric ether (.76) aye 6 66 = so (7 
Hydrogen - ce ge 21.40* 002 seat ti rt ~ 7) get: > “45 
yeen 3 le - 4-75* 006 ae page — ‘55 
ommon air . + - 1.79* 002 Solids. 
Carbonic acid - - . 1.05* 002 ’ 
Azotic gas SS 7o. ore} ee wi % Oe ag thee r vege - go? » 83? 
{ Aqueous vapour < sate be, t-55 stb ~— reg ae nish, 45 to 65 
= . +30 
Liquids.” Pica ( aS 27) - - 38 -36 
Water - - . 1.00 1.00 Char oo 2s .26* 
Arterial blood - ~ 1.03* - +27 67 
Milk (1.026 fp. gr.) Pa -98 1.00 Hydrate of lide . - +25 
Carbonate of ammonia (1.035) ae .98 Flint glafs (2. sh - - “19 55 
Carbonate of potafh (1.30) - 75 .98 M - . +23 | 
Solution of ammonia (.948) - 1.03 -98 Sulphur - - - *19 
Common vinegar (1.02 - 92 94 i eee toes +13 1.00 
Venous blood - - 89* Brafs See ee ae Ii A 
Solut. com. falt (1.197) - 78 93 Copper - ~ - <¥2 3h 
aa of Ae (1.17) . 77 gO Nickel - - . -10 78 
litric acid (1.2 - - 76 .96 Ne ee a a +10 69 
sta acid (1. 3°) - 68 .88 Silver = eo - 08 84 
litric acid (1.3 - - 63 85 2 | ae a 07 +51 
Jitrate of lime —— 62 87 Antimony . - . .06 +40 
ulph. acid and i oul bulls 52 -80 Gold : - - 05 -97 
M acid (1.153) - -60 o lead += - . = .O4 45 
Acetic acid (1.056) = - 66 -70 Bifmuth = eae 04 40 
Sulphuric acid (1.844) + = -35 65 Oxyds of the metals furpafs the 
Alcohol (85) -- - -} 9% + .65 |} metals themfelves, according 
Ditto (.817) - - 70 =§7 to Crawfo 
Thofe marked * are entirely on Crawford’s authority. retain their form, though the variation of the capacity is 
is reafon to doubt of the accuracy of his refults re- probably {mall in general ; it is fuppofed to increafe with 
fpedting the gafes, from the extremely great difficulties the temperature. Mr. Dalton feems to think the capacity 
hich they prefent in regard to this inquiry. Mr, Dalton of boiling water may be to that of water at the freezing 
ey given a theory or hypothefis for the fpecific heat of po ahs 8 102, or perhaps 105, to 100. See his New 
rales i i ion. y oO 
é feen under the article Gas. The manner in which the Cotv.—To the i ey of experiments already — 
{pecific heats above given are obtained may be feen in the which have been made with a view to afcertain the sph} 
articles Capacity at y Coxp, and in the works of the above ad/olute nag may be added thofe of Mr. Dalton, ina 
ringer’ authors. It is helatves that the cage of bodies fection on the natural zero of temperature, or abfolute pri- 
is hot qi uite permanent at all ae while they vation of | heat. 
From a mixture of 577 fulph. acid and 1 water, by weight 
: ; 
2 
lime I 
sate acid I eosin ace 
From Sateen eles 
ve “ ois ad lw - 
ee © ba 
wine 
